Step 1 · Calibration
Set your horizontal (time) and vertical (voltage) calibrations.
Step 2 · Measurement Mode
Path 1: Auto Wave Detection
Mark R peaks and automatically analyze boundaries.
Path 2: Manual Calipers
Select a tool and click/drag on the ECG canvas to mark manually.
Durations (X):
Amplitudes (Y):
Areas:
Free:
Path 3: Landmark Mode
Mark wave boundaries sequentially (P onset -> QRS onset -> J point -> T end).
Path 4: Frontal QRS Axis
Measure net QRS deflections on Lead I and Lead aVF to compute the Frontal QRS Axis.
Guide: Select Lead I or Lead aVF tool, then click-drag vertically starting at baseline. Or type values manually.
QRS AXIS:
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Path 5: R-R Variation / HRV
Measure 5-10 consecutive R-R intervals with the caliper to analyze short-term HRV.
Guide: Measure 5-10 consecutive R-R intervals sequentially on rhythm strip.
Measured Intervals (ms):
No intervals measured yet.
Avg RR
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Avg HR
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SDNN
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RMSSD
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pNN50
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Min-Max Diff
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RHYTHM / HRV INTERPRETATION:
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Path 6: P-P Coupling Variation
Measure 5-10 consecutive P-P intervals with the caliper to analyze P-P coupling variation.
Guide: Measure consecutive P-P intervals sequentially on rhythm strip.
Measured Intervals (ms):
No intervals measured yet.
Avg PP
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Avg Atrial Rate
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SDPP
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RMSSD (PP)
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pPP50
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Min-Max Diff
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ATRIAL RHYTHM INTERPRETATION:
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Path 1: Auto Waves
Path 2: Manual
Path 3: Landmark
Path 4: Frontal Axis
Path 5: R-R / HRV
Path 6: P-P Coupling